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Message-Id: <20220510130733.430864409@linuxfoundation.org>
Date:   Tue, 10 May 2022 15:07:38 +0200
From:   Greg Kroah-Hartman <gregkh@...uxfoundation.org>
To:     linux-kernel@...r.kernel.org
Cc:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
        stable@...r.kernel.org, Mark Brown <broonie@...nel.org>,
        Jerome Brunet <jbrunet@...libre.com>
Subject: [PATCH 5.10 19/70] ASoC: meson: Fix event generation for AUI ACODEC mux

From: Mark Brown <broonie@...nel.org>

commit 2e3a0d1bfa95b54333f7add3e50e288769373873 upstream.

The AIU ACODEC has a custom put() operation which returns 0 when the value
of the mux changes, meaning that events are not generated for userspace.
Change to return 1 in this case, the function returns early in the case
where there is no change.

Signed-off-by: Mark Brown <broonie@...nel.org>
Reviewed-by: Jerome Brunet <jbrunet@...libre.com>
Link: https://lore.kernel.org/r/20220421123803.292063-2-broonie@kernel.org
Signed-off-by: Mark Brown <broonie@...nel.org>
Cc: stable@...r.kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@...uxfoundation.org>
---
 sound/soc/meson/aiu-acodec-ctrl.c |    2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

--- a/sound/soc/meson/aiu-acodec-ctrl.c
+++ b/sound/soc/meson/aiu-acodec-ctrl.c
@@ -58,7 +58,7 @@ static int aiu_acodec_ctrl_mux_put_enum(
 
 	snd_soc_dapm_mux_update_power(dapm, kcontrol, mux, e, NULL);
 
-	return 0;
+	return 1;
 }
 
 static SOC_ENUM_SINGLE_DECL(aiu_acodec_ctrl_mux_enum, AIU_ACODEC_CTRL,


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